Much better dungeons design including with traps. Well the series need more dungeons but it's still an improvement.

Risen goes actually quite overboard with the amount of dungeons.
Puzzles and level design were generally good, but the lack of interactions, relatively poor variety of enemies and the fact that game makes you explore most of the dungeons one after another doesn´t do the overall flow much good.
Still I´m glad PB put long and intricate dungeons in the game, I just hope that in their next title they´ll balance outdoor exploration with dungeon romping better.

Lack of any proper dungeon romp is one of few things that always bothered me in G2.